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Standard XII
Chemistry
Reactivity with Halogens (Group 1)
16. Calculate...
Question
16. Calculate molar conductivities for NH4OH that values of molar conductivity for Ba(OH)2,BaCl2&NH4Cl as 523.28 ,280 &129.8 S cm2 per mole explain with proper solution
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Q.
Calculate molar conductivity for
N
H
4
O
H
(
S
c
m
2
m
o
l
–
1
)
, given that molar conductivity for
B
a
(
O
H
)
2
,
B
a
C
l
2
and
N
H
4
C
l
for 523.28, 280.0 and 129.8
S
c
m
2
m
o
l
–
1
respectively.
Q.
Molar conductivity for a compound AB is
145.0
S
c
m
2
m
o
l
−
1
and for CB is
110.1
S
c
m
2
m
o
l
−
1
. Limiting molar conductivity for
A
+
is
73.5
S
c
m
2
m
o
l
−
1
. What is the molar conductivity for
C
+
?
Q.
Given that
(
i
n
S
c
m
2
e
q
−
1
)
at
T
=
298
K
Λ
∘
e
q
for
B
a
(
O
H
)
2
,
B
a
C
l
2
and
N
H
4
C
l
are 228.8, 120.3 and 129.8 respectively. Specific conductance for 0.2
N
N
H
4
O
H
solution is
4.766
×
10
−
4
Scm
−
1
, then the
p
H
of given
N
H
4
O
H
solution will be:
Q.
A
0.05
M
N
H
4
O
H
solution offers the resistance of
50
o
h
m
to a conductivity cell at
298
K
. If the cell constant is
0.50
c
m
−
1
and molar conductance of
N
H
4
O
H
at infinite dilution is
471.4
o
h
m
−
1
c
m
2
m
o
l
−
1
, calculate :
(i) Specific conductance
(ii) Molar conductance
(iii) Degree of dissociation
Q.
At 291 K, the molar conductivities at infinite dilution of
N
H
4
C
l
,
N
a
O
H
and
N
a
C
l
are 129.8, 217.4 and
108.9
S
c
m
2
m
o
l
−
1
respectively . If the molar conductivity of a centinormal solution of
N
H
4
O
H
is
9.532
S
c
m
2
m
o
l
−
1
, then calculate the dissociation constant of
N
H
4
O
H
?
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